Critical Speed (Nc) of a ball mill is given by(where R₁ and R₂ are radii of ball mill and the ball respectively).

Critical Speed (Nc) of a ball mill is given by(where R₁ and R₂ are

1.	Critical Speed (Nc) of a ball mill is given by(where R₁ and R₂ are radii of ball mill and the ball respectively).
A.	A
B.	B
C.	C
D.	D
Answer» C. C

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Critical Speed (Nc) of a ball mill is given by(where R₁ and R₂ are radii of ball mill and the ball respectively).

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